Features: · Low +1.2V Operating Supply Voltage(VCC or VBATT)
· Precision Monitoring of +5.0V, +3.3V, +3.0V, and+2.5V Power-Supply Voltages
· Debounced Manual Reset Input (MAX6361)
· Watchdog Timer with 1.6s Timeout Period(MAX6362)
· Battery-On Output Indicator (MAX6363)
· Auxiliary User-Adjustable RESET IN (MAX6364)
· Three Available Output StructuresPush-Pull RESET, Open-Drain RESET,Open-Drain RESET
· RESET/RESET Valid Down to 1.2V Guaranteed(VCC or VBATT)
· Power-Supply Transient Immunity
· 150ms (min) Reset Timeout Period
· Small 6-Pin SOT23 PackageApplication`Computers
`Controllers
`Intelligent Instruments
`Critical P/C
`Power Monitoring
`Fax Machines
`Industrial Control
`POS Equipment
`Portable/Battery-Powered
`EquipmentPinout
SpecificationsTerminal Voltages (with respect to GND)
VCC, BATT, OUT.......................................................-0.3V to +6V
RESET (open drain), RESET (open drain) ................-0.3V to +6V
BATT ON, RESET (push-pull), RESET IN,
WDI.........................................................-0.3V to (VOUT + 0.3V)
MR ............................................................-0.3V to (VCC + 0.3V)
Input Current
VCC Peak ...............................................................................1A
VCC Continuous ..............................................................250mA
BATT Peak ......................................................................250mA
BATT Continuous ..............................................................40mA
GND..................................................................................75mA
Output Current
OUT................................Short-Circuit Protection for up to 10s
RESET, RESET, BATT ON ....................................................20mA
Continuous Power Dissipation (TA = +70)
6-Pin SOT23 (derate 8.70mW/ above +70) .............696mW
Operating Temperature Range ...........................-40 to +85
Junction Temperature......................................................+150
Storage Temperature Range .............................-65 to +150
Lead Temperature (soldering, 10s) .................................+300
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional peration of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to bsolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe MAX6361MAX6364 supervisory circuits reduce the omplexity and number of components required for ower-supply monitoring and battery control functions in icroprocessor (P) systems. The circuits significantly mprove system reliability and accuracy compared to that btainable with separate ICs or discrete components.
Their functions of MAX6361MAX6364 include P reset, backup battery witchover, and power failure warning.
The MAX6361MAX6364 operate from supply voltages as ow as +1.2V. The factory-preset reset threshold voltage anges from 2.32V to 4.63V (see Ordering Information).
These MAX6361MAX6364 provide a manual reset input (MAX6361),watchdog timer input (MAX6362), battery-on output MAX6363), and an auxiliary adjustable reset input MAX6364). In addition, each part type is offered in three eset output versions: an active-low push-pull reset, an ctive-low open-drain reset, and an active-high opendrain eset (see Selector Guide at end of data sheet).
MAX6361MAX6364 Data Sheet
